The invention relates to improved high-temperature-resistant metal anti-corrosive paint, which consists of the following components in parts by mass: 30-40 parts of GHNK high-temperature-resistant adhesive, 15-20 parts of polyaniline / graphene composite material, 15-20 parts of coloring pigment, 5-10 parts of superfine talcum powder, 5-10 parts of superfine mica powder, 5-10 parts of kaolin, 0.2-0.5 parts of SN-612 flatting agent, 0.3-0.5 parts of wetting agent X-405, 0.1-0.3 parts of dimethyl ethanolamine, 0.1-0.3 parts of anti-corrosive agent 981, 0.5-1 part of GHP 101 thickening agent, 0.1-0.3 parts of tributyl phosphate and 4-13 parts of water. The paint prepared by the invention has the advantages of excellent water-proof and anti-corrosive properties, high temperature resistance, alkaline resistance, weathering resistance, scrub resistance, artificial aging resistance and the like, passivation and corrosion inhibition of a metal base material can be realized, meanwhile, the use of heavy metals such as chromium which can cause environmental pollution is avoided, and the paint is easy to prepare, low in cost and is easy for industrial batch production.